An electromechanical drum brake comprises two brake segments intended to come into contact with a drum, and at least one actuator configured to apply the segments against the drum, and an electric motor configured to activate the actuator, the actuator comprising at least one member which is movable upon activation of the actuator, the movable member being movable between a braking position and a position beyond a release position, in which the segments are no longer in contact with the drum. The actuator comprises a stop which is arranged only in the actuator and against which the movable element bears when it assumes a position beyond the release position, and the motor powers the actuator until the movable element bears against the stop.

A wheel module for a vehicle, in particular for an electric motorcycle or electric scooter, includes a wheel axle and a wheel. The wheel having a wheel rim and said wheel rim being rotatably mounted on the wheel axle; and including a brake device for the wheel. The brake device having a brake pad and a brake disc for co-operating with the brake pad, said brake disc being axially movable in order to brake the wheel.

A friction lining assembly having a backing plate and a sheet metal restoring spring fixed thereto, for a partially lined sliding-caliper type disk brake having a brake holder fixed with respect to the vehicle, on which friction lining assemblies arranged on both sides of a brake disk are slidably guided. A housing, which extends over the brake disk and the friction lining assemblies, is slidably mounted on the brake holder. The restoring spring is clamped axially between the brake holder and the friction lining assembly by at least one spring leg and applies a release clearance to the friction lining assembly. The spring leg extends over a hammer-head-shaped claw of the backing plate. The spring leg is plastically deformable in a defined manner under braking actuation as a result of a reduction in the friction-material thickness in order to impose a constantly dimensioned release clearance on the friction lining assembly.

A drum brake apparatus includes a housing; a main braking unit installed on one part of the housing, and driven by a hydraulic pressure and pressing a shoe, during main braking; and a parking braking unit installed on the other part of the housing, and driven by an electromotive force of an actuator and pressing the shoe, during parking braking, the parking braking unit includes a bevel gear section disposed in the housing while having a structure of a bevel gear, and rotated in association with the actuator; and a rod section connected with the bevel gear section, and moved out of the housing in association with the bevel gear section and pressing the shoe.

An electrical wheel brake actuator for motor vehicles, designed to move a brake pad in the direction of a brake rotor and having an electric motor-gear assembly with a rotation-translation converter assembly that includes a nut-spindle arrangement, and an elastic element which is associated with a release end stop of the spindle arrangement in order, together with a control unit, to allow the electric motor to be automatically electrically switched off. The elastic element includes at least two disc springs which are able to form an expanded segmented force-travel spring curve formed from multiple force-travel spring curve portions.

A friction engagement device includes an elastic member between a piston and a friction plate in an axial direction. Elastic member includes: second engaged portion to be brought into engagement with engagement portion of tubular member so as to be movable in axial direction; and annular plate portion sandwiched between pressing surface of piston and friction plate from both sides in axial direction. Surface of annular plate portion facing first axial side is provided with projection and recess arranged alternately in circumferential direction. Assuming that a phase where radial groove provided in pressing surface and projection provided on annular plate portion are located at corresponding positions in circumferential direction is a particular phase, engagement portion of tubular member, first engaged portion of piston, and second engaged portion of elastic member are formed such that piston and elastic member are unable to come into engagement with tubular member at particular phase.

A hydraulic brake motor device, including a motor positioning, installation and driving portion, a motor body meshing pair portion, and a motor brake device portion. A shuttle valve is integrated inside the hydraulic brake motor device and configured to relieve pressure inside the motor brake device portion. The shuttle valve includes two separate functional parts of check valves.

A bridge for a disc brake caliper includes a body defining a first bore disposed about an axis. The first bore includes a plurality of threads. The body further defines a second bore extending radially from an outer surface of the body into the first bore. A tube is received within the first bore and supports a tappet at one end for engaging a friction pad. The tube is configured to receive one end of an adjustment shaft of a friction pad wear adjuster therein. The tube defines a plurality of threads on a radially outer surface configured for engagement with the plurality of threads in the first bore and at least one of the plurality of threads on the first tube defines a plurality of teeth. A detent extends through the second bore and engages the teeth to inhibit rotation of the tube within the body.

An axle disconnect assembly, including: a housing and a clutch a shaft with first splines; a sleeve including second splines non-rotatably connected to the first splines, and axially extending teeth; a shift lever including at least one pivot pin, a first end connected to the sleeve, and a second end; and an actuation assembly including an actuation shaft engaged with the second end of the shift lever, and an actuator. In a connect mode, the teeth are non-rotatably connected to a power output. In a disconnect mode, the sleeve is rotatable with respect to the power output. To shift from the disconnect mode to the connect mode: the actuator rotates the actuator shaft; the actuator shaft pivots the shift lever around an axis of the at least one pivot pin; and the first end of the shift lever displaces the sleeve, with respect to the shaft, in an axial direction.

An automatic transmission has a one-side clutch and an other-side clutch in an axial direction, the one-side clutch and the other-side clutch being aligned in the axial direction on an axis of a power transmission shaft. These clutches respectively include: drum sections; hub sections; friction plates that are engaged in an axially slidable manner between the drum sections and the hub sections; and pistons that press the friction plates. The friction plates in the one-side and other-side clutches are arranged in parallel in the axial direction. The pistons in the one-side clutch and the other-side clutch are arranged on one sides in the axial direction of the friction plates and are arranged such that axial positions thereof overlap. The piston in the other-side clutch penetrates the friction plate in the one-side clutch in the axial direction.